High-resolution vessel wall imaging(HR-VWI) is an novel technique used to assess intracranial artery stenosis, and it has been useful in clinical practice. In addition, time-to-maximum (Tmax) maps, derived from PWI, are increasingly being used in studies of ischemic stroke, and can provide more prominent cerebral hemodynamic information. Our study aimed to investigate the plaque characteristics in middle cerebral artery (MCA) between patients with and without hypoperfusion area, and to identify the risk factors affecting hypoperfusion area.
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